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Complement, Total, Serum

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Updated Test Information:

Test Description
Complement, Total, Serum
Synonym(s)

C'H(100); C'H(50); CH50; COMPLEMENT, TOTAL (C'H50); Complement, Total Hemolytic; Connective Tissue Disease Activity Assessment (2 tests); Immunology Profile (CH50); Total Complement, Serum; Total Hemolytic Complement-routine
Test ID
COM
General Information

Useful for:



  • Detection of individuals with an ongoing immune process

  • First-order screening test for congenital complement deficiencies
Specimen Type

Serum
Specimen Requirements

Red Top
Specimen Collection / Processing Instructions

  • Fasting preferred

  • Immediately after specimen collection, place the tube on wet ice

  • Centrifuge and aliquot serum into plastic vial

  • Immediately freeze specimen.
Stability

Frozen: 28 days
Unacceptable Specimen Conditions

Serum Gel (SST)
Limitations

Results are dependent on appropriate specimen transport and storage
Methodology

Automated Liposome Lysis Assay
Estimated TAT

1-2 days
Testing Schedule

Monday-Saturday
Retention

14 days
CPT Code(s)

86162
Additional Information
Minimum Sample Volume

0.5 mL
Reference Range

30-75 U/mL
Performing Lab

Mayo
LOINC Code(s)

4532-8